Paraphanius boulengeri (Aksiray, 1948)

Freyhof, JÖrg, Yoğurtçuoğlu, Baran, Jouladeh-Roudbar, Arash & Kaya, Cüneyt, 2025, Handbook of Freshwater Fishes of West Asia, De Gruyter : 750-751

Paraphanius boulengeri

Common name. Gölbaşı killifish.

Diagnosis. Distinguished from other species of Paraphanius by: ○ male bluish, black or dusty grey with roundish or elongated silvery spots on flank organised in vertical series / ○ silvery spots indistinct, overlaid by many fine, powder-like dots / ○ pelvic reaching to anal origin in adult male / ○ pre-dorsal distance 55–62 % SL / ○ pre-anal distance 62–64 % SL/ ○ interorbital distance 33–40 % HL / ○ female with pale-brown marbled pattern on flank / ○ female with pale-brown stripe between vertical of dorsal-base and caudal base / ○ female with silvery scales above and below stripe on caudal peduncle / ○ female with marbled pattern on back. Size up to 40 mm SL.

Distribution . Türkiye: Gölbaşı lakes in Adıyaman.

Habitat . Lakes and canals with or without dense underwater vegetation.

Biology. Live up to 4 years, mature in a few months, usually late in year of birth. Males establish territories along banks, usually in dense vegetation, defending against rivals. Females spawn with one or more males, usually in vegetation close to surface. Individual females produce several clutches in one day. Feeds on algae, detritus, and small invertebrates.

Conservation status. EN; appears to be declining within its very small range. Its only habitat has been dominated by invasive Gambusia holbrooki .

Further reading. Akşıray 1948 (description).

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Paraphanius boulengeri

Distribution

Habitat